Rod for card-cabinets.



M. L. CROWE.

ROD FOR CARD CABINETS.

APPLICATION FILED NOV. 21. m4.

Patented Nov. 23, 1915.

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' MYRON' L. CROWE, OF HOLLISTON, MASSACHUSETTS.

ROD FOR CARD-CABINETS.

Specification of Letters Patent.

Application filed November 21, 1914. Serial No. 873,263.

To all whom it may qoncern:

Be it known that I, MYRON L. CRowE, a citizen of the United States, residing at Holliston, in the county of Middlesex and Commonwealth of Massachusetts, have invented a certain new, and useful Improvement in Rods for Card-Cabinets, of which the following is a specification.

My invention relates to card index cabinets but more particularly to the rods upon which the cards are mounted, and its principal object is to provide a rod, which can be screwed into the front of the drawer of the cabinet, having a knob permanently and securely fastened to its forward extremity. I attain this and other objects of my invention in the device set forth in the following description and accompanying drawings in which like reference characters refer to corresponding parts.

In the drawings: Figure 1 is a fragmentary sectional view of the drawer in a cabinet: Fig. 2, an enlarged View. of the sleeve having parts broken away; Fig. 3, an end elevation of the sleeve shown in Fig. 2; Fig. l, a detail view of the front of the rod; Fig. 5, a longitudinal sectional view of the knob before the parts are assembled, and Figs. 6, 7, and 8, detail views of modifications.

The drawer of the cabinet consists of a front 1, back 2, sides 3, 3 and bottom 4, as shown in Fig. 1. A short distance above the bottom 4 and midway between the sides 3, 3 the front 1 is provided with an aperture in which is closely 'fitted an internally screw-threaded cylindrical bushing 5 so that its ends will be flush with the front and rear faces of the front 1. The internally screw threaded. bushing 5 cooperates with the externally screw-threaded sleeve 6 which latter is carried by the outer extremity of the card rod 7 in a manner which will be front end of the rod 7 is flattened and flared to form a fan-shaped head 14. In assembling the parts the sleeve 6 is passed over the rear end of the rod and slipped along until it abuts against the head 14. The front end of the rod carrying the sleeve 6 is then inserted into the socket 13 of the knob 12. The bronze knob is then forced onto the sleeve until the metal at its front extremity becomes upset into the groove 10 so that the knob is permanently secured to the sleeve. Should the front portion 9 of the sleeve be serrated as shown it would prevent the knob from returning thereon, so that the groove need not necessarily be knurled and would thereby permit more metal to flow in during the upsetting operation. The character of the blow during the upsetting operation is such that the flared head 14 is driven into the sleeve sufficiently to hold the rod 7 from turning in relation to the sleeve. The card rod 7 is then passed through the drawer from front to rear, the external screw threads of the sleeve taking the internal screw threads of the bushing, the rear extremity of the rod being suitably supported in the back 2 of the drawer so that the rod may be free to turn on its axis. In this manner the knob is secured to the front of the drawer and the card rod 7 held in the drawer.

Sometimes it is desirable to have the sleeve turn in relation to the rod, in which case the flared head 14 may be dispensed with and the end of the rod left smooth. I prefer, however, to have the rod fixed in its relation to the sleeve. Sometimes it is desirable to have the sleeve made integral with the rod in which case the forward end of the rod is upset, and the upset portion screw-threaded and grooved, as in the case of the separate sleeve, a particular instance being shown in Figs. 4 and 5 in which the rod 15 is provided with an upset portion 1e having screw-threads 17 and a circumferential groove 18 into which the bronze of the knob is upset during the process of assembling.

While I have flattened the front end of the rod to prevent the same from turning in relation to the sleeve yet my invention comprehends other forms of effecting this result, as for instance that shown in Fig. 7 in which the front end of the rod '19 is provided with a tapered. head 20 and the sleeve 21 is provided with longitudinally disposed slots 22 which permits the sleeve to spread or expand during the upsetting operation. In this arrangement the sleeve is forced into the wall of the socket 13 of the knob which wall may be serrated if desired in order to give a tighter grip.

Having now described my invention What I claim and desire to protect by Letters Patent is:

1. A rod for card cabinets having an enlarged front extremity, the said enlarged extremity having its middle portion provided with a circumferential groove and having that portion immediately to the rear of said groove provided with screw-threads, in combination with a knob bored longitudinally to form a recess in which the enlarged extremity is seated, the metal around the open end of said recess being upset into said groove to permanently fasten the knob to the rod.

2. A rod for card cabinets having a sleeve mounted on its front extremity, the said sleeve having its middle portion provided with a circumferential groove and the portion immediately to the rear of said groove provided with screw threads, in combination with a knob bored longitudinally to form a recess in Which said sleeve is seated, the

metal around the open end-of said recess 11 being upset into said groove to permanently fasten the knob to the rod.

In witness whereof I have hereunto set my hand on this 6th day of November, 1914.

MYRON L. CROWE. Witnesses:

ALBERT B. POND, FRANCES A. IRELAND. 

